From da33298be517f6eba9e6538eb43a7504b4e7f5e9 Mon Sep 17 00:00:00 2001
From: Brian Costlow <brian.costlow@gmail.com>
Date: Fri, 3 May 2019 15:11:26 -0400
Subject: [PATCH] Ordering fix.

---
 pycon/schedule/views.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/pycon/schedule/views.py b/pycon/schedule/views.py
index 9ec92210..044ed771 100644
--- a/pycon/schedule/views.py
+++ b/pycon/schedule/views.py
@@ -7,6 +7,8 @@
 from django.contrib.auth.decorators import login_required, permission_required
 from django.contrib.auth.models import User
 
+from django.db.models import Max
+
 
 from .models import Session, SessionRole, Presentation, SlidesUpload
 from .forms import SlidesUploadForm
@@ -184,12 +186,13 @@ def slides_upload(request, presentation_id):
 @login_required
 @permission_required('pycon_schedule.can_download_slides', raise_exception=True)
 def slides_download(request):
-    """Build the slides download page for the captioners."""
 
-    available_slides = SlidesUpload.objects.order_by(
-        'presentation__slot__start',
+    """Build the slides download page for the captioners."""
+    available_slides = SlidesUpload.objects.annotate(room=Max('presentation__slot__slotroom__room__name')).order_by(
         'presentation__slot__day__date',
-        )
+        'room',
+        'presentation__slot__start'
+    )
 
     # Django ORM does ordering but not grouping, so build the nested display
     # order the hard way.